Skinnier is a term commonly used to describe someone who is thin or lean. However, there exist many other synonyms to describe the same attribute. Some of these synonyms include slimmer, leaner, svelter, more slender, and trimmer. Additionally, other synonyms for skinnier could be used in a specific context, such as wirier or gaunter to describe someone who is thin and lanky, or thinner and more delicate to describe the texture of an object. While these words may be interchangeable in some contexts, understanding the subtle nuances of each synonym can help convey a more specific meaning in conversation or writing.